Have a broken mouse? or an old/unuse mouse? Then Lets make robot :)
This simple mouse robot that is capable of avoiding obstacle by using scrap materials like an old mouse. It is just using SPDT(Single pole double throw) microswitches w/ lever for reversing the motor/battery polarity.
Step 1: Parts
*an old mouse
*2--- (1.5-5v)dc motor.
*2 ---1.5v AA battery(you can use any battery or higher volts to speed up the motor)
*some connecting wires(solid wires)
*2 ----micro switch w/ lever (SPDT-single pole double throw)
*horn(i used that yellow plastic) any will do as long as it is able to pressed the switch
*some gluestick for mounting the horn.
Step 2: Schematic Diagram
In Open switch Condition(not click) - As long as The NC(normally closed) is connected the mousebot will turn forward.
In Close switch Condition(click)- The NO(Normally Open) will short and make a closed loop in opposite direction thus the mousebot will turn backward.